Where do mosquitoes mainly bite the human body?

Where the distance between the blood vessels is shallow.

The biting mosquitoes are Anopheles sinensis, Culex mosquitoes and Aedes mosquitoes.

1. Anopheles sinensis.

The Anopheles sinensis mosquito is generally only one centimeter in size, and it is also what we often call the autumn mosquito. Autumn is the peak breeding season for mosquitoes, so they will bite people all the time, which is also the reason for the poison of autumn mosquitoes. It is a medium-sized grayish-brown mosquito with gray and white spots on its wings, an upturned tail when lying still, and a mouth as long as its tentacles, especially in plains.

2. Culex mosquitoes. Culex mosquitoes are our most common mosquitoes, also known as house mosquitoes, which are generally yellow-brown and have no patterns on their wings, and are mostly active at night, and females come out to suck blood. Generally, they hide in damp and dark places at home for the winter, and usually live mainly in places with water sources, such as flower ponds, water basins, and toilets, which can also spread filariasis, which is the most common mosquito in China.

3. Aedes mosquitoes. Aedes mosquitoes, also known as the Asian tiger mosquito, are the most ruthless of the common mosquitoes, and are also known as the "flower mosquitoes". The body is black, there are white spots on the body are obvious, the vitality and cold resistance are very strong, and it generally flies over to bite people when the air conditioner is turned on, and it is also very aggressive. It is mostly common outdoors, likes to suck human blood, and will swell a large piece after stinging, ** itching, causing local inflammation.

Mosquitoes

MosquitoesMosquitoes are small flying insects with stinging and sucking mouthparts. Multicellular organisms with elongated bodies and feet, usually females feed on blood, while males feed on the sap of plants, preferring to inhabit hidden, dark and poorly ventilated areas, found on all continents except Antarctica.

People who don't attract mosquitoes are healthy, because mosquitoes determine the target of attack by judging the amount of carbon dioxide emitted by a person and the height of their body temperature, not by their health. Bridge infiltration

Generally, mosquitoes like to bite people with developed sweat glands, body odor, foot odor, as well as developing teenagers and pregnant women, and people wearing black clothes are also more likely to be bitten by mosquitoes.

Mosquitoes can bite at any time of the day, but mosquito bites are more common in the evening and at night. Because in the evening and evening, when the sun sets, the indoor light and land dissolution line will not be very strong, and mosquitoes are afraid of light but do not like the light too dark, and like to suck blood in a low-light environment, so many people in the evening or at night, whether at home or outdoors, are easy to be bitten by mosquitoes.

Mosquitoes are the most annoying in summer, and mosquito bites are selective, when many people are together, mosquitoes only need certain people, and some mosquitoes do not bite, why is this? What is the basis for mosquitoes to bite? The process of mosquito bites is actually very complicated, so let's take a closer look at the process of mosquito bites.

1. Discover the target

Mosquitoes rely on their sense of smell to find their targets, because mammals emit odors, and mosquitoes rely on these smells to find the general direction of their targets。For example, the smell and body odor emitted by the human body can attract mosquitoes within a few tens of meters around, so if you want to avoid attracting mosquitoes, what you need to do is to take a bath frequently and eliminate your own odor.

2. Precise search

When a mosquito approaches its target, it will look for the place where it is going to go down through its eyes, and not only does the mosquito have a wide angle of view, but it can also see infrared rays, so it can see infrared raysMosquitoes can use the infrared radiation emitted by the human body to find the position of the lower mouthBecause the infrared radiation of the human blood vessel key focus is greater than that of the ordinary **, mosquitoes can quickly find the location of blood vessels, and mosquitoes like the lower mouth of people with high thermal radiation.

3. The blood-sucking process

Once the mosquito finds its lower mouth, it sucks blood with lightning speed, and the whole process takes about 3 seconds, and many steps have been taken during this time. Mosquitoes first in order to avoid being discovered, so they will inject anesthetics in **, and then mosquitoes will inject formic acid, this substance can help mosquitoes easily puncture ** and blood vessel skin, after entering the blood vessels, mosquitoes will inject anticoagulants into the blood, this substance can prevent blood clotting, and facilitate mosquitoes to suck blood.

Regardless of the number of mosquitoes, the mosquitoes that bite are all females, because females need to suck their blood to lay eggs. Male mosquitoes just drink dew, of course, no matter what mosquitoes are old model training is not a good thing, usually pay attention to protect the water body, you can reduce the size of mosquito breeding.

Mosquito bites will first explore the surface of the lip flap and puncture it repeatedly, so as to select the most appropriate blood-sucking position, and the selection criteria are mainly based on the distribution density of microvessels in the **. When the mosquito sucks blood, it is supported by the lower lip, and then the mouth needle is pierced into the mouth, which is a structure composed of the upper lip, the big jaw and the small jaw that can operate as a whole, and the lower lip left on the outside of the ** is bent inward into an arch shape. <

Mosquito bites will first explore the surface of the lip flap and puncture it repeatedly, so as to select the most appropriate blood-sucking position, and the selection criteria are mainly based on the distribution density of microvessels in the **. When the mosquito sucks blood, it is supported by the lower lip, and then the mouth needle is pierced into the mouth, which is a structure composed of the upper lip, the big jaw and the small jaw that can operate as a whole, and the lower lip left on the outside of the ** is bent inward into an arch shape. In addition, the saliva of mosquitoes contains a vasodilating and anticoagulant substance, which makes it easier for blood to flow to the bite site.